The Electronic Cigarette looks like a cigarette, feels like a cigarette, some even would say it 'smokes' like a cigarette. However, it does not contain any tobacco nor any of the carcinogens found in regular cigarettes. You do not need to 'set fire' to a e-cigarette to use it, it does not 'smoke', instead it emits a nicotine vapour; so it is also perfectly legal to use in places such as pubs and restaurants that are now banned to cigarette users.